Primary packaging and display therefor

ABSTRACT

Primary packages configured for display and sale without secondary packaging are stacked horizontally in a product display tray. The individual primary packages may shaped to facilitate grasping by having a first surface contoured for grasping in the user&#39;s palm, and a second surface opposite the first surface with molded branding information for engagement by a portion of the user&#39;s fingers. Molded branding information may be positioned on a surface of the primary package that faces upwardly when the primary packages are positioned in the product display tray.

CROSS-REFERENCE TO RELATED APPLICATION

The present divisional application claims the benefit of the earlier filing date of U.S. patent application Ser. No. 12/840,837, filed Jul. 21, 2010, which claims the benefit of the earlier filing date of U.S. provisional patent application 61/230,908, filed Aug. 3, 2009, and is a continuation-in-part of and claims the benefit of the earlier filing date of U.S. design patent application No. 29/306,214, filed Apr. 4, 2008, which applications are hereby incorporated by reference herein in their entireties.

FIELD OF THE INVENTION

The present invention relates to reduction of packaging materials for containers. More particularly, the present invention relates to improvements to primary packagings so that secondary packagings may be eliminated. The present invention also relates to manners of displaying primary packagings.

BACKGROUND OF THE INVENTION

Various approaches to creating environmentally-friendly packaging and to reducing packaging costs are known. One approach is to reduce the materials used to form the package. For instance, consumer articles typically are packaged in a primary package (directly containing the article, such as a bottle which contains a fluid or solid form), which primary package is then placed in another, secondary package (such as a paperboard or cardboard box). Typical primary packaging for consumer articles have curved or rounded side walls, whereas typical corresponding secondary packaging has flat side walls. Thus, the outer surface area of the secondary packaging typically is greater than that of the primary packaging, and greater than necessary simply to enclose the primary packaging. A more environmentally-friendly approach to packaging reduces or even eliminates the secondary packaging. However, secondary packaging is often beneficial for providing product information about the article contained within the primary packaging, as the primary packaging often does not provide enough outward surface area to display all the information about the article typically desired by consumers, or required by federal agencies. For instance, various over-the-counter (non-prescription, or “OTC” for short) consumer articles, such as OTC drug products, are regulated by the Food and Drug Administration (FDA), which, as an agency, requires specific product information, such as the statement of identity (established name and general pharmacological class), quantity and dosage form, and Drug Facts, to be displayed on the packaging. Drug facts may include, but are not limited to, information on the active ingredient, active ingredient chemical name, active ingredient dosage, uses, warnings, directions, and inactive ingredients. Drug labels are also required to have lot number and expiration dating, and a company contact, which includes manufacturer or distributor information.

Upon eliminating secondary packaging, and packing or stacking together multiple primary packages with typically convexly-curved side walls (typical primary packages for OTC drug products have substantially circular cross-sections), it becomes evident that an excess amount of empty space is generated between the surfaces of the convexly-curved walls of the primary packages that cannot be stacked against one another. One solution has been to use primary packaging with one or more substantially flat side walls, such as a primary package with a quadrilateral cross-section. Such primary packaging, however, may not be as comfortable to hold in the user's hand, particular if the primary package is sized to fit in at least a portion of the palm of the user's hand.

Various primary packages with quadrilateral cross-sections have been designed to be stacked horizontally, i.e., with their longitudinal axes (along which the opening to the primary package and the bottom closed end of the primary package lie) substantially horizontal. Such stackable primary packages are shaped to be laid on their substantially flat side walls, or on side walls that have a flat section for stabilizing the primary package when laid horizontally. Although interlocking or intermeshing features may be provided to inhibit relative lateral shifting of the stacked primary packages, there typically is a need for further lateral stabilization of such stacked primary packages.

SUMMARY OF THE INVENTION

In accordance with the principles of the present invention, a primary package is formed with at least one stable surface, such as a substantially flat side wall, to permit the primary package to be rested on a surface in a substantially horizontal orientation (with the longitudinal axis, along which the open end is formed, in a substantially horizontal orientation) in a substantially stable manner (such that a lateral impact to the primary package results in little or no pitching or rolling of the primary package about its longitudinal axis). Until the present invention, horizontally stacked primary packages had not been used for OTC drug products. A primary package formed in accordance with the principles of the present invention provides sufficient surface area for the information required by the FDA to be displayed in a manner that is readily visible to consumers at the point of purchase, while also providing product-identifying information.

In accordance with another aspect of the present invention, a primary package having a substantially quadrilateral cross-section is formed to facilitate grasping thereof in the hand of a consumer. In particular, a debossed, impressed, engraved, or embossed shape may be formed along at least a portion of one of the side walls of the primary package. Such shape is preferably positioned for engagement by a portion of the user's hand, such as the user's fingers, such as to reduce slippage of the primary package when grasped by the user. At least one pair of the opposing walls of the quadrilateral-cross-section primary package may optionally be curved, such as one of the pair being concave and the other of the pair being convex. A user may find grasping of such primary package to be more comfortable with the concave wall in the user's palm or against the user's thumb or thumb base, and the convex wall grasped by the user's fingertips, or, alternatively, with the convex wall in the user's palm or against the user's thumb or thumb base, and the concave wall grasped by the user's fingertips. Positioning of the debossed, impressed, engraved, or embossed shape along at least a portion of the convex wall such that a portion of the user's hand (e.g., palm, thumb, thumb base, fingers, fingertips, or any portion thereof) may engage such shape further facilitates grasping of the primary package, such as by reducing lateral shifting of the primary package in the user's hand. The shape may be branding information, such as the brand name.

In accordance with another aspect of the present invention, a primary package may be formed with opposing surfaces configured to permit horizontal stacking of such primary packages. The opposing surfaces may be provided in opposing curved walls, such as a concave wall formed opposite a convex wall. In order to inhibit lateral shifting of the stacked primary packages, a recess may be formed in the concave wall, and a raised section may be formed in the convex wall to engage the recess of a similarly-formed primary package. Such recess and raised section inhibit lateral shifting of stacked primary packages. The debossed, impressed, engraved, or embossed shape described above may be formed in such raised section. If desired, the raised section may be formed to indicate the content of the primary package, such as by being formed in a shape corresponding to the content of the primary package.

In accordance with yet another aspect of the present invention, a plurality of horizontally stacked primary packages may be displayed in a display tray configured to impart lateral stability to the stacked primary packages. Because a display tray typically has vertically extending side walls, if the primary packages are horizontally stacked, the display tray side walls (particularly the front side wall facing consumers) may block at least some, if not all, of the primary packages in the bottom-most layer of stacked primary packages (i.e., the horizontally positioned primary packages lying directly on the interior bottom surface of the display tray). In accordance with yet a further aspect of the present invention, graphics may be provided along at least a portion of the consumer-facing surfaces of the display tray. Thus, as primary packages are removed, a consumer still can readily identify the product contained in the primary package even if there is little or no product on the upwardly-facing surface of the horizontally positioned primary packages in the display tray.

In one embodiment, primary packages formed in accordance with one or more principles of the present invention are useful for containing a plurality of oral solid dosage forms or OTC drug products such as tablets or caplets. In this embodiment the packaging allows for individual dosages to be segmented upon shaking of the bottle while the package is grasped.

These and other features and advantages of the present invention will be readily apparent from the following detailed description of the invention, the scope of the invention being set out in the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS

The detailed description will be better understood in conjunction with the accompanying drawings, wherein like reference characters represent like elements, as follows:

FIG. 1 is a top side, front side, top end perspective view of an exemplary stackable primary package formed in accordance with principles of the present invention;

FIG. 2 is a back side, bottom side, top end perspective view of the exemplary primary package of FIG. 1;

FIG. 3 is a front elevational view of the exemplary primary package of FIG. 1;

FIG. 4 is a top end view of the exemplary primary package of FIG. 1;

FIG. 5 is a bottom end view of the exemplary primary package of FIG. 1;

FIG. 6 is a top end view of the exemplary primary package of FIG. 1 stacked and interlocked with substantially identical primary packages;

FIG. 7 is a cross-sectional view along line 7-7 of FIG. 6;

FIG. 8 is a front side elevational view of an exemplary primary package formed in accordance with principles of the present invention with a product-identifying label;

FIG. 9 is a perspective view of an exemplary display tray formed in accordance with principles of the present invention and filled with exemplary primary packages formed in accordance with principles of the present invention; and

FIG. 10 is a perspective view of the exemplary display tray of FIG. 9, but without primary packages therein.

DETAILED DESCRIPTION OF THE INVENTION

An exemplary primary package 100 formed in accordance with principles of the present invention is illustrated in FIGS. 1-8. As may be appreciated, particularly with reference to the top and bottom end views of FIGS. 4 and 5, respectively, primary package 100 has an essentially quadrilateral cross-sectional shape. In particular, primary package 100 has opposing top and bottom side walls 102, 104, respectively, and opposing front and back side walls 106, 108, respectively. Primary package 100 may be oriented vertically, with longitudinal axis L substantially vertical, to rest on bottom end 110. Of course, bottom end 110 may be curved and thus not necessarily configured to permit primary package 100 to rest thereon. Top end 112 may have an opening formed by a neck finish 114 through which products contained within primary package 100 may be accessed. Any desired type of closure, such as cap 116, may be provided to close open top end 112 to retain products within primary package 100.

In accordance with one aspect of the present invention, primary package 100 may be rested horizontally on a surface (with longitudinal axis L oriented substantially horizontally). Preferably at least one of side walls 102, 104, 106, 108 of package 100 is contoured (such as provided with a flat) to permit primary package 100 to rest in a stable manner in a horizontal orientation. Further in accordance with an aspect of the present invention, a plurality of primary packages 100 may be stacked horizontally on top of one another, as illustrated in FIG. 6. If desired, at least one pair of opposing walls (either top side wall 102 and bottom side wall 104, or front side wall 106 and back side wall 108) are curved or otherwise contoured or configured to engage one another in a manner to reduce lateral movement between stacked primary packages 100. In the exemplary embodiment of FIGS. 1-8, top side wall 102 and bottom side wall 104 are curved in complementary manners to inhibit lateral movement between stacked primary packages 100 with top side wall 102 of one primary package 100 engaged with bottom side wall 104 of another primary package 100. More particularly, in the exemplary embodiment of FIGS. 1-8, top side wall 102 includes a convexly curved surface and bottom side wall 104 includes concavely curved surface with a radius of curvature substantially corresponding to the radius of curvature of the convexly-curved surface of top side wall 102. However, other contours are within the scope of the present invention, and such contours may be applied, instead or in addition, to front side wall 106 and back side wall 108.

Alternatively, or additionally, a recess 120 may be provided in one of side walls 102, 104, 106, 108, and a corresponding raised section 122, sized and shaped to fit within recess 120, may be provided on the opposite side wall. Such recess and raised section are illustrated as being provided, respectively, in a concavely curved surface and a convexly curved surface. However, the surfaces in which recess 120 and raised section 122 are provided may have any other contour, such as flat or the same (e.g., both convex), so long as raised section 122 can be engaged within recess 120. In the exemplary embodiment of FIGS. 1-8, recess 120 is formed within bottom side wall 104 and corresponding raised section 122 is formed in top side wall 102. However, the reverse arrangement (with recess 120 in top side wall 102 and raised section 122 in bottom side wall 104) may be provided, or recess 120 may be formed in one of front side wall 106 and back side wall 108 with corresponding raised section 122 being formed in the other of front side wall 106 and back side wall 108. As such, primary packages 100 may intermesh or interlock with one another.

Recess 120 and raised section 122 may be formed in any desired shape. In the exemplary embodiment, recess 120 and raised section 122 are formed in substantially the same shape and match each other. However, recess 120 and raised section 122 need not having matching shapes so long as they engage each other to provide the desired inhibition of lateral movement of the primary packages 100 that are engaged with one another upon engaging a recess 120 of one with a raised section 122 of another. If desired, one or both of recess 120 and raised section 122 can be in the shape of the product to be contained within primary package 100. In accordance with one aspect of the present invention, primary package 100 may contain a solid oral dosage form of an OTC drug product (such as a tablet, pill, capsule, caplet, etc.), and at least one of recess 120 and raised section 122 may be shaped to match the shape of the solid oral dosage form. In the exemplary embodiment of FIGS. 1-8, both recess 120 and raised section 122 have a capsular shape (and primary package 100 thus may contain capsules or caplets as indicated by such capsular shape).

It will be appreciated that the walls in which recess 120 and corresponding raised section 122 are formed need not be curved (as are top side wall 102 and bottom side wall 104), since interlocking or intermeshing of such features achieve the desired inhibition of lateral movement otherwise provided by mating contours. It will further be appreciated that more than one interlocking features may be provided, in the form of a recess and corresponding raised section or in any other form that would inhibit lateral movement of horizontally stacked primary packages.

In accordance with another related yet independent aspect of the present invention, forms such as branding information 124 (such as, without limitation, logos, brand names, selected letters from the brand name, etc., and referenced hereinafter as “branding information” for the sake of simplicity without intent to limit) may be formed into at least one of side walls 102, 104, 106, 108 of primary package 100. Such forming may be achieved in any desired manner which preferably alters the surface contour of the side wall in which the branding information is formed, such as by debossing, engraving, impressing, or embossing. For the sake of convenience, and without intent to limit the present invention to any particular manner of forming such forms as branding information 124, reference will be made to “molding” or “molded” with the understanding that a molding process is an optional but not necessary manner of achieving or forming the desired feature. The formation of branding information 124 in at least one of side walls 102, 104, 106, 108 permits product identification even if labeling is not provided on such wall. For instance, as will be discussed in greater detail below, if primary packages 100 are stacked within a box or tray, and labeling is provided on only the vertically oriented side walls, then such labeling may not be readily seen when looking down on one of primary packages 100. Preferably, branding information 124 is provided on the upwardly facing side wall of primary package 100 (top side wall 102) to be readily visible when viewing a stack of primary packages 100 from above.

It will be appreciated that forms other than those specifically associated with branding may be formed in one or more surfaces of package 100. As such, although reference is made to branding information 124, such feature is not limited to branding, and may be in any other desired shape or form. In accordance with another aspect of the present invention, one or more forms may be formed into package 100 to facilitate grasping of primary package 100 in a user's hand. Although such forms as branding information 124 may be provided in a side wall that is not curved or as curved as top side wall 102 or bottom side wall 104 of exemplary primary package 100 of FIGS. 1-8, formation of forms such as branding information 124 in a curved side wall provides an additional benefit. In particular, exemplary primary package 100 may be sized to be held in a user's hand, with a convexly-contoured top side wall 102 and a concavely-contoured bottom side wall 104. Concavely contoured bottom side wall 104 may be comfortably held against the palm or thumb or thumb base of the user's hand so that the user's fingers (other than the thumb if the thumb is held against concavely contoured bottom side wall 104) grasp convexly-contoured top side wall 102. Alternatively, convexly contoured top side wall 102 may be comfortably held against the palm or thumb base of the user's hand so that the user's fingers (other than the thumb if the thumb is held against convexly contoured top side wall 102) grasp concavely-contoured bottom side wall 104. Provision of contoured forms such as branding information 124 in convexly-contoured top side wall 102 permits the user to engage a portion of the user's hand (e.g., palm, thumb, thumb base, fingertips) with branding information 124 to enhance gripping, the contouring of branding information 124 forming an uneven surface inhibiting lateral movement thereof with respect to the user's grasping hand. Of course, it will be appreciated that a contour other than a concave contour may be provided to enhance grasping of such surface in the user's hand, and contoured forms such as branding information 124 may be formed in a surface contoured other than in a convex contour, while still enhancing grasping of primary package 100.

As noted above, a primary package 100 formed in accordance with principles of the present invention may be used for packaging solid oral dosage forms of an OTC drug product. Typically, federal laws have strict requirements with respect to labeling and provision of information about solid oral dosage forms of OTC drug products, such as set forth in Part 201 of Title 21 of the Code of Federal Regulations. Accordingly, until now, although prescription medicines and dietary supplements have been sold in primary packages without secondary packaging, OTC drug products generally have not been sold in primary packages without secondary packaging. Moreover, although stackable primary packages or containers have been known in the prior art for at least forty years prior to the present invention, such primary packages have not been described as being particularly suitable for packaging OTC drug products for consumer sale.

In accordance with the principles of the present invention, previous hurdles, such as those presented by strict federal labeling requirements, have been overcome by forming a stackable primary package with side walls having sufficient surface area to fit the federally-required product information. In particular, primary package 100 may be formed in accordance with the present invention for stacking on shorter top side wall 102 and bottom side wall 104, allowing longer front side wall 106 and back side wall 108 to have surfaces that readily accommodate labeling (i.e., not having complex contours which complicate application of labels thereto) and which are forwardly-facing (towards consumers) when the primary packages are in a stacked configuration. At least one label provides information about the content of primary package 100. As illustrated in FIG. 8, a principal display panel 103 (“PDP”) is provided on front side wall 106 of primary package 100. The text of PDP's (as set forth in 21 C.F.R. §201.60) must be oriented for reading, at the point of sale, of at least a statement of identity of the contents, and the net quantity (which text must be reasonably parallel to the base on which the product rests). Thus, if primary package 100 is to be horizontally stacked, then at least identity and quantity information must be written along longitudinal axis L of primary package 100 so as to be readily legible when primary package 100 is laid horizontally (with longitudinal axis L in a horizontal orientation). Thus, although PDP 103 may be applied to primary package 100 in any desired manner (e.g., directly printed on front side wall 106, or in the form of a label applied to front side wall 106), content-information is oriented along longitudinal axis L for ready reading when primary package 100 is laid horizontal on a surface. The additional, more detailed federally-required information (such as what is specifically known as the “Drug Facts” in 21 C.F.R. §201.66(c)) may be oriented in the same direction as front label information or in an orientation transverse to longitudinal axis L (if the bottle is to be placed on its bottom end by the consumer). The federally required Drug Facts may be provided in booklet form affixed to the wall opposite the wall bearing PDP 103 (in the embodiment of FIG. 8, back side wall 108) to be opened by the consumer. Thus, the text of at least the interior of the booklet provided on back side wall 108 (not shown) is oriented horizontally for reading when package 100 is in a vertical upright position (with longitudinal axis L in a vertical orientation) as would be typical when stored in a consumer's home (such as on a counter or medicine cabinet shelf).

As described above, primary package 100 is preferably particularly formed to inhibit lateral relative movement of stacked primary packages 100 such as by engaging correspondingly contoured surfaces with each other, and/or by more securely interlocking or intermeshing the contacting surfaces, such as by engaging a raised section into a recess. In accordance with a separate aspect of the present invention, stackable primary packages, such as (but not necessarily) exemplary primary package 100, may be stacked horizontally within a display tray having one or more vertical walls providing laterally stability to the stacked primary packages. An exemplary product display tray 200 configured to contain a plurality of primary packages laid horizontally therein and stacked on one another is illustrated in FIGS. 9 and 10. Product display tray 200 has a product display area 201 formed within one or more vertically extending side walls 202, 204, 206, 208 which preferably are configured to provide lateral support (when needed) to primary packages 100 stacked within product display area 201. In particular, front side wall 202 and back side wall 204 of product display tray 200, if provided, can inhibit forward and rearward shifting of primary packages 100, particularly upon placement of product display tray 200 on a retail shelf or other display surface for consumer display. Right side wall 206 and/or left side wall 206 of product display tray 200, if provided, are helpful for inhibiting lateral shifting of primary packages 100, such as when consumers reach into product display area 201 to remove a primary package 100.

Front side wall 202 of product display tray 200 is also particularly useful for providing “billboard” surface area for product information, branding (e.g., brand name, logos, etc.), tag lines, or other indicia 203. However, as may be appreciated upon comparison of FIGS. 9 and 10, height H of front side wall 202 may cover at least a portion of PDP 103 of primary package 100, thereby impeding consumers' ability to read PDP 103. Without being able to read PDP 103 readily, and particularly if no label is provided on top side wall 102, consumers are not readily able to identify the contents of primary package 100 and thus may be inhibited from purchasing the product packaged in primary package 100. Moreover, height H of front side wall 202 of product display tray 200 may even be at least as high as or even higher than width W primary package 100 (see FIG. 8), which is essentially the height (in a vertical direction) of front side wall 106 of primary package 100 when primary package 100 is laid horizontally. A front side wall 202 that is at least as high as width W of primary packages 100 within product display area 201 of product display tray 200 may block the lower-most layer of primary packages 100 from view. Such blocking of primary packages 100 is particularly detrimental when only the bottom-most primary packages 100 (i.e., those resting directly on bottom wall 210 of product display tray 200) are left within product display area 201. Even if front side wall 106 of primary package 100 is visible and bears branding information 124, such information may not be sufficient to catch the eye of the average consumer when making a quick purchase. Consumers therefore may overlook products in product display 100 when only the bottom-most layer of primary packages 100 is left.

In accordance with another aspect of the present invention, the forwardly facing surface of back side wall 204 of product display tray 200 (i.e., the surface facing toward front side wall 202, and thus in the direction readily visible to consumers) is provided with graphics 205 that communicate or signal to the consumer the content of product display tray 200. Graphics 205 are illustrated in FIG. 10 as mimicking (in the form of a graphic reproduction of) a stack of primary packages 100 in the orientation in which primary packages 100 would be provided within product display area 201 of product display tray 200 (i.e., forwardly-facing, with PDP 103 facing forwardly in the direction of front side wall 202 for ready viewing by consumers). Information provided by graphics 205 preferably includes at least some, if not all, information provided on PDP 103. In the exemplary embodiment of FIG. 10, graphics 205 is a 1:1 scaled replica of primary packages 100 stacked to fill product display area 201 of product display tray 200. However, it will be appreciated that other forms of graphics 205 providing sufficient information to identify the product contained within primary package 100 and/or to communicate to consumers the content of product display tray 200 are within the scope of the present invention. Typically provision of at least the brand name, the statement of identity (consisting of the established name and general pharmacological class), and the dosage form permits sufficient information to identify the product. Such product-identifying information may be provided in any desired format that is visible to consumers to permit consumers to identify the product within product display tray 200, such information complying, as required, with any applicable rules under Title 21 of the Code of Federal Regulations. Also, graphics may be provided on the product-facing surfaces of one or both of right side wall 206 and left side wall 208 of product display tray 200.

Although exemplary primary packages 100 and exemplary product display tray 200 need not be used in conjunction with one another, and each have separate and independent inventive features, display of primary packages 100 formed in accordance with the principles of the present invention within product display tray 200 formed in accordance with the principles of the present invention results in unique benefits. In particular, display of primary packages 100 formed in accordance with above-described principles of the present invention within a product display tray 200 formed in accordance with above-described principles of the present invention permits substantially continuous consumer identification of the product contained within primary packages 100. More particularly, a primary package 100 formed in accordance with above-described inventive principles may have not only a PDP 103 visible from a forwardly-facing surface when primary package 100 is laid horizontally, but also branding information 124 visible from an upwardly-facing surface when primary package 100 is laid horizontally. In addition, when displayed in a product display tray 200 formed in accordance with above-described inventive principles, even if PDP 103 is blocked by front side wall 202 of product display tray 200, the information provided on PDP 103 is visible on the forwardly-facing surface of back side wall 204 as individual primary packages 100 are removed from product display area 201, and thus readily visible to consumers at all times.

While the foregoing description and drawings represent exemplary embodiments of the present invention, it will be understood that various additions, modifications, and substitutions may be made therein without departing from the spirit and scope of the present invention. In particular, it will be clear to those skilled in the art that the present invention may be embodied in other specific forms, structures, arrangements, proportions without departing from the spirit or essential characteristics thereof. One skilled in the art will appreciate that the invention may be used with many modifications of structure, arrangement, proportions, materials, and components and otherwise, used in the practice of the invention, which are particularly adapted to specific environments and operative requirements without departing from the principles of the present invention. The presently disclosed embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims, and not limited to the foregoing description. 

1. A primary package configured to contain and to display a product for consumer purchase, said primary package comprising: at least one concavely curved surface; and at least one convexly curved surface positioned substantially opposite said concavely curved surface; wherein: branding information is molded into at least a portion of said convexly curved surface; and said primary package is sized for grasping said concavely curved surface with one of (1) the palm, thumb, thumb base, or portion thereof, and (2) the fingers, fingertips, or portion thereof, and for engagement of the other of (1) the palm, thumb, thumb base, or portion thereof, and (2) the fingers, fingertips, or portion thereof with said molded branding information.
 2. A primary package as in claim 1, wherein said molded branding information is formed by at least one of debossing, engraving, impressing, or embossing.
 3. A primary package as in claim 1, wherein: a recess is formed in one of said concavely curved surface and said convexly curved surface; a raised section is formed on the other of said concavely curved surface and said convexly curved surface; and said recess and said raised section are configured for engagement of a recess of one said primary package with a raised section of another said primary package.
 4. A primary package as in claim 3, wherein branding information is molded in said raised section.
 5. A primary package as in claim 4, wherein said raised section is formed on said convexly curved surface.
 6. A primary package as in claim 3, wherein: the product packaged within said primary package comprises a plurality of articles of the same shape; and said raised section is shaped to correspond substantially to said article shape. 